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Environment-friendly glass wool comprising nanoparticle layer

A nanoparticle and glass wool technology, applied in the field of thermal insulation materials, can solve the problems of high consumption, lack of suitable materials for thermal insulation, and inability to meet the requirements, achieving the convenience of enterprise production and building construction, improving thermal insulation and thermal insulation effects, and reducing thermal conductivity. Effect

Inactive Publication Date: 2017-11-24
苏州蓝邦环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As a result, the existing glass wool with a thickness of 2cm on the market can no longer meet the requirements of the new national energy-saving standards; and most glass wool enterprises have adopted the method of increasing the thickness of glass wool at the expense of the effective volume of the building, which will inevitably have a large impact on the production and installation systems. Amplitude adjustment consumes a lot of manpower, material resources, and financial resources, and it is also contrary to the long-term planning and development of national building energy conservation, which is not conducive to the sustainable development of society
In addition, there is no suitable material for thermal insulation of parts with narrow space and complicated pipelines.

Method used

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  • Environment-friendly glass wool comprising nanoparticle layer
  • Environment-friendly glass wool comprising nanoparticle layer
  • Environment-friendly glass wool comprising nanoparticle layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Nano-SiO2 has the following basic properties: specific surface area is 200±25m2 / g; loss on drying is 1% (drying at 100°C for 2h); loss on ignition is 4% (burning at 1000°C for 2h); purity is 99.8% The pH value of the suspension is 3.7-4.7 (4% aqueous suspension); the bulk density is 50g / L; the particle size range is 10nm-18nm; the average particle size is about 15nm.

[0060] Nano-SiO2 was added to 73 g of the above-mentioned glass fibers, and stirred at a speed of 100 r / min for 1 hour, so that the nanoparticles were evenly attached to the surface of the glass fibers, and a composite of nanoparticles and glass fibers was obtained.

[0061] Spray 8g of acrylic resin binder (provided by the factory for direct spraying) into the composite of the above-mentioned nanoparticles and glass fibers, and then put it into a mold and use a YES-300 pressure testing machine for compression molding. During the pressing process, the pressure was first applied slowly by controlling the a...

Embodiment 2

[0064] In addition to adding half a quantity of nano-SiO2 and silicon carbide equivalent to nano-SiO2 (the particle size range is 2 μm to 4 μm; the average particle size is about 3 μm), the same method as in Example 1 is used to prepare the nano-particle layer of the present invention. Environmentally friendly glass wool. The thickness of the nanoparticle layer is 1 / 33 of the diameter of the glass fiber.

[0065] The results of the back temperature test were as follows: image 3 shown. It can be seen that the maximum temperature difference between the hot surface and the cold surface 3 of the glass wool is 121 degrees, and the gap tends to widen.

Embodiment 3

[0067] In addition to adding half the amount of nano-SiO2, silicon carbide equivalent to nano-SiO2 (the particle size range is 2 μm to 4 μm; the average particle size is about 3 μm), and nano-Al2O3 (average particle size is about 30nm~ About 50nm), adopt the same method as Example 1 to prepare the environment-friendly glass wool with nano particle layer of the present invention. The thickness of the nanoparticle layer is 1 / 33 of the diameter of the glass fiber.

[0068] The results of the back temperature test show that the thermal insulation effect of the glass wool is better than that of Example 2.

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Abstract

The invention belongs to the technical field of thermal insulation and particularly relates to environment-friendly glass wool comprising a nanoparticle layer. The environment-friendly glass wool comprising the nanoparticle layer comprises a plurality of glass fibers, wherein the nanoparticle layer is arranged on the outer sides of the glass fibers; the average particle size of nanoparticles is about 0-80 nm; the nanoparticles comprise nano-SiO2; the thickness of the nanoparticle layer is 1 / 50-1 / 10 of the diameter of the glass fiber. Compared with glass wool in the prior art, the thermal insulation effect of a thermal insulation board made of the glass wool can be significantly improved on the premise of the same thickness.

Description

technical field [0001] The invention belongs to the field of thermal insulation materials, and relates to a glass wool, more specifically, the invention relates to an environment-friendly glass wool with a nano particle layer. Background technique [0002] Glass wool belongs to a category of glass fibers and is a man-made inorganic fiber. Glass wool is a material made of molten glass fibrosis to form a cotton-like material. Its chemical composition belongs to glass and is an inorganic fiber. It has good formability, small bulk density, low thermal conductivity, thermal insulation, good sound absorption performance, corrosion resistance, and stable chemical properties. [0003] There are two types of glass wool currently on the market: white formaldehyde-free glass wool and yellow phenolic resin glass wool. White formaldehyde-free glass wool is mainly made of waste glass, which is melted, centrifuged, blown into cotton, and then formaldehyde-free acrylic resin is used as a ...

Claims

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Application Information

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IPC IPC(8): C04B26/06B29C67/24
CPCC04B26/06B29C67/248C04B2201/32C04B14/06C04B14/42C04B20/0036C04B14/324C04B14/303
Inventor 王文兵
Owner 苏州蓝邦环保科技有限公司
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